Is bigger better? Driving factors of POTW performance in New York

Water Research
Brian G RahmSridhar Vedachalam

Abstract

Like many regions around the world, New York State, USA, faces challenges in meeting wastewater treatment quality standards because of aging infrastructure, limited funding, shifting demographics and increasingly stringent environmental regulations. In recent decades construction of new wastewater treatment and distribution infrastructure in NY has most often occurred in exurban communities and suburban developments that are less dense than traditional urban cores. Here, we examine the role of size and capacity utilization on wastewater treatment effectiveness with respect to critical effluent parameters, and additionally explore which common facility engineering controls influence water quality treatment using a unique dataset of descriptive information. Our results challenge conventional wisdom, suggesting that the largest facilities (>30,000 m3/d), not the smallest (<300 m3/d), discharge TSS, BOD, and coliform at significantly higher relative effluent concentrations (i.e., the ratio of discharged concentrations to allowable limits). Capacity utilization was also positively correlated to higher concentrations of TSS, BOD, and coliform effluent concentrations in larger facilities, though those concentrations were often within ...Continue Reading

References

Mar 9, 2005·Journal of Applied Microbiology·W AhmedM Katouli
Sep 28, 2007·Water Research·Sílvia C Oliveira, Marcos Von Sperling
Mar 30, 2012·Journal of the American Water Resources Association·Molly A Maupin, Tamara Ivahnenko
Mar 30, 2012·Journal of the American Water Resources Association·Richard B MooreBryan Milstead
Dec 3, 2014·Water Research·Yago Lorenzo-TojaGumersindo Feijoo

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